Most countries use the Metric System, which uses the measuring units such as meters and grams and adds prefixes like kilo, milli and centi to count orders of magnitude.
33.3 m/s
3.33 * 101 m/s (scientific)
33.33 m/s (engineering)
In the USA and UK, the older Imperial system is used, where things are measured in feet, inches and pounds.
120,000 m/hr
109 ft/sec
86,400 secs
1.0 day
86.4 * 103 sec(s)
1.44 * 103 min(s)
24 hr(s)
1 day(s)
2,880,000 meter
9.45 * 106 ft
3.15 * 106 yard
2.88 * 106 m
2.88 * 103 km
1.79 * 103 mile
1.56 * 103 nautical mile
